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Biomedical subjects

Z Chalabi

Publications and source records attributed to Z Chalabi.

4 recordsLinked to original sources
PubMed1985

Pattern analysis of Békésy audiograms.

A data-dependent method for the objective classification of Békésy audiograms is introduced. The technique uses orthogonal transformation from the pattern space to a reduced dimensionality feature space that allows a classification process to be implemented digitally. It is argued that this technique, with accretion of audiograms, could form the basis of a data-based system for determining and classifying the coherent structures of the various Békésy patterns with as few as possible a priori hypotheses made about the Békésy "types."

Audiometry↗
PubMed1985

Correlation between vestibular and cochlear measures in internal ear disorders.

A study was carried out on vestibular and cochlear measures of 20 patients with internal ear disorders. It was shown that the vestibular findings do not always match the cochlear ones. A comparison of the various quantitative measures of the post-caloric responses with the clinical picture indicated that the average slow-phase velocity provides a good measure of the vestibular function. The correlation coefficients between the average slow-phase velocity of the post-caloric responses and those of the per- and post-rotatory responses were higher than those based on the maximum slow-phase velocity value. The diagnostic significance of the rotatory test is assessed against the clinical findings.

Adolescent↗
PubMed1984

Cumulative slow-phase eye position of the caloric nystagmus.

A coherent and stable method was implemented for constructing the cumulative slow-phase eye position of the post-caloric nystagmus. Similarity and variability analyses performed on the derived responses (inter- and intrasubject) of 6 normals confirmed the homogeneity of the measure. A pilot study on one pathological case showed marked deviation from the normal responses.

Caloric Tests↗